The updated didn’t complete properly. It ended in showing a blank screen shortly after initiating the update. In fact after that, the whole blog was “gone”, no errors in the browser, just a blank screen. Turns out the update process caused a crash of a lot of stuff on my hosting provider’s site, and he was not too thrilled about that. 

Plan B, do a manual update, still no success, and I still can’t login to the wp-admin page. A little Googling and we decide to disable the plugins manually, and apparently, that was the money to get the site back up. So, right now I’m updating all the plugins, enabling one at a time, and hoping nothing crashes out again.

Ever since the automatic update feature was introduced in WordPress all my updates have gone flawlessly, and I guess I was lulled into a false sense of security. Lesson learned, follow the process, back everything up, and give my hosting guy a heads up that “something” might happen.

From the Updating WordPress « WordPress Codex

Consider rewarding yourself with a blog post about the update, reading that book or article you’ve been putting off, or simply sitting back for a few moments and letting the world pass you by.